2019-11-05 00:03:24 +04:00

125 lines
4.2 KiB
Objective-C

//
// ASInternalHelpers.h
// Texture
//
// Copyright (c) Facebook, Inc. and its affiliates. All rights reserved.
// Changes after 4/13/2017 are: Copyright (c) Pinterest, Inc. All rights reserved.
// Licensed under Apache 2.0: http://www.apache.org/licenses/LICENSE-2.0
//
#import <AsyncDisplayKit/ASAvailability.h>
#import <UIKit/UIKit.h>
#import <AsyncDisplayKit/ASBaseDefines.h>
#import <AsyncDisplayKit/ASDisplayNodeExtras.h>
#import <AsyncDisplayKit/ASImageProtocols.h>
NS_ASSUME_NONNULL_BEGIN
AS_EXTERN void ASInitializeFrameworkMainThread(void);
AS_EXTERN BOOL ASDefaultAllowsGroupOpacity(void);
AS_EXTERN BOOL ASDefaultAllowsEdgeAntialiasing(void);
AS_EXTERN BOOL ASSubclassOverridesSelector(Class superclass, Class subclass, SEL selector);
AS_EXTERN BOOL ASSubclassOverridesClassSelector(Class superclass, Class subclass, SEL selector);
/// Replace a method from the given class with a block and returns the original method IMP
AS_EXTERN IMP ASReplaceMethodWithBlock(Class c, SEL origSEL, id block);
/// Dispatches the given block to the main queue if not already running on the main thread
AS_EXTERN void ASPerformBlockOnMainThread(void (^block)(void));
/// Dispatches the given block to a background queue with priority of DISPATCH_QUEUE_PRIORITY_DEFAULT if not already run on a background queue
AS_EXTERN void ASPerformBlockOnBackgroundThread(void (^block)(void)); // DISPATCH_QUEUE_PRIORITY_DEFAULT
/// For deallocation of objects on a background thread without GCD overhead / thread explosion
AS_EXTERN void ASPerformBackgroundDeallocation(id __strong _Nullable * _Nonnull object);
AS_EXTERN CGFloat ASScreenScale(void);
AS_EXTERN CGSize ASFloorSizeValues(CGSize s);
AS_EXTERN CGFloat ASFloorPixelValue(CGFloat f);
AS_EXTERN CGPoint ASCeilPointValues(CGPoint p);
AS_EXTERN CGSize ASCeilSizeValues(CGSize s);
AS_EXTERN CGFloat ASCeilPixelValue(CGFloat f);
AS_EXTERN CGFloat ASRoundPixelValue(CGFloat f);
AS_EXTERN Class _Nullable ASGetClassFromType(const char * _Nullable type);
ASDISPLAYNODE_INLINE BOOL ASImageAlphaInfoIsOpaque(CGImageAlphaInfo info) {
switch (info) {
case kCGImageAlphaNone:
case kCGImageAlphaNoneSkipLast:
case kCGImageAlphaNoneSkipFirst:
return YES;
default:
return NO;
}
}
/**
@summary Conditionally performs UIView geometry changes in the given block without animation.
Used primarily to circumvent UITableView forcing insertion animations when explicitly told not to via
`UITableViewRowAnimationNone`. More info: https://github.com/facebook/AsyncDisplayKit/pull/445
@param withoutAnimation Set to `YES` to perform given block without animation
@param block Perform UIView geometry changes within the passed block
*/
ASDISPLAYNODE_INLINE void ASPerformBlockWithoutAnimation(BOOL withoutAnimation, void (^block)(void)) {
if (withoutAnimation) {
[UIView performWithoutAnimation:block];
} else {
block();
}
}
ASDISPLAYNODE_INLINE void ASBoundsAndPositionForFrame(CGRect rect, CGPoint origin, CGPoint anchorPoint, CGRect *bounds, CGPoint *position)
{
*bounds = (CGRect){ origin, rect.size };
*position = CGPointMake(rect.origin.x + rect.size.width * anchorPoint.x,
rect.origin.y + rect.size.height * anchorPoint.y);
}
ASDISPLAYNODE_INLINE UIEdgeInsets ASConcatInsets(UIEdgeInsets insetsA, UIEdgeInsets insetsB)
{
insetsA.top += insetsB.top;
insetsA.left += insetsB.left;
insetsA.bottom += insetsB.bottom;
insetsA.right += insetsB.right;
return insetsA;
}
ASDISPLAYNODE_INLINE AS_WARN_UNUSED_RESULT ASImageDownloaderPriority ASImageDownloaderPriorityWithInterfaceState(ASInterfaceState interfaceState) {
if (ASInterfaceStateIncludesVisible(interfaceState)) {
return ASImageDownloaderPriorityVisible;
}
if (ASInterfaceStateIncludesDisplay(interfaceState)) {
return ASImageDownloaderPriorityImminent;
}
if (ASInterfaceStateIncludesPreload(interfaceState)) {
return ASImageDownloaderPriorityPreload;
}
return ASImageDownloaderPriorityPreload;
}
@interface NSIndexPath (ASInverseComparison)
- (NSComparisonResult)asdk_inverseCompare:(NSIndexPath *)otherIndexPath;
@end
NS_ASSUME_NONNULL_END
#ifndef AS_INITIALIZE_FRAMEWORK_MANUALLY
#define AS_INITIALIZE_FRAMEWORK_MANUALLY 0
#endif